RFX8051
Production Data Sheet
CMOS 5GHz WLAN 802.11ac RFeIC WITH PA, LNA AND SPDT
LEN
RXEN
GND
ANT
16
15
14
13
Description
NC
12
GND
RX
11
NC
NC
10
VDD
VDD
9
NC
5
6
7
8
DET
TXEN
GND
TX
RFX8051 is a highly integrated, single-chip, single-die RFeIC (RF Front-end
Integrated Circuit) which incorporates key RF functionality needed for IEEE
802.11a/n/ac WLAN system operating in the 5.15-5.85GHz range. The RFX8051
architecture integrates a high-efficiency high-linearity power amplifier (PA), a low
noise amplifier (LNA) with bypass, the associated matching network, LO rejection,
and harmonic filters all in a CMOS single-chip device.
RFX8051 has simple and low-voltage CMOS control logic, and requires minimal
external components. A directional coupler based power detect circuit is also
integrated for accurate monitoring of output power from the PA.
RFX8051 is assembled in an ultra-compact low-profile 3.0x3.0x0.55 mm 16-lead
QFN package, and is the ideal RF front-end solution for implementing 5GHz WLAN
in smartphones and other platforms.
Applications




802.11n/ac Wi-Fi Devices
Tablets / MIDs
Wi-Fi Media Gateways
Consumer Electronics




Notebook / Netbook / Ultrabook
Access Points / Routers
Set Top Boxes / Wireless IPTVs
Other 5GHz ISM Platforms
FEATURES

5GHz WLAN Single Chip, Single-Die RF Front-End
IC

ESD Protection Circuitry on All Pins

High Transmit Signal Linearity Meeting 802.11ac
Standard

DC Decoupled RF Ports

Internal RF Decoupling on All VDD Bias Pins

Separate TX, RX Transceiver Ports, Single
Antenna Port

Low Noise Figure for the Receive Chain

5GHz Power Amplifier with Low-Pass Harmonic
Filter
High Power Capability for Received Signals in
Bypass Mode

Full On-chip Matching Circuitry

Low Noise Amplifier with Bypass Mode

Minimal External Components Required

Transmit/Receive Switch Circuitry

50-Ohm Input / Output Matching

Integrated Power Detector for Transmit Power
Monitor and Control

Market Proven CMOS Technology

3mm x 3mm x 0.55mm Small Outline 16L QFN
Package with Exposed Ground Pad

RoHS and REACH Compliant


Low Voltage (1.2V) CMOS Control Logic

Low DC Power Consumption
1
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
RFX8051
Production Data Sheet
PIN ASSIGNMENTS:
Pin Number
Pin Name
Description
1, 3, 9, 11
NC
Internally Not Connected
2
RX
RF Output Port from LNA or Bypass – DC Shorted to GND
4, 10
VDD
DC Supply Voltage
5
DET
Analog Voltage Proportional to the PA Power Output
6
TXEN
CMOS Input to Control TX Enable
7, 12, 14, 17
GND
Ground – Must Be Connected to GND in the Application Circuit
8
TX
RF Input Port from the Transceiver – DC Shorted to GND
13
ANT
Antenna Port RF Signal from the PA or RF Signal Applied to the LNA – DC
Shorted to GND
15
RXEN
CMOS Input to Control RX Enable
16
LEN
CMOS Input to Control LNA Enable or Bypass Mode
PIN-OUT DIAGRAM:
LEN
RXEN
GND
ANT
16
15
14
13
NC
12
GND
11
NC
NC
10
VDD
VDD
9
NC
17
GND
RX
5
6
7
8
DET
TXEN
GND
TX
(Top “See-Through” View)
2
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
RFX8051
Production Data Sheet
ABSOLUTE MAXIMUM RATINGS:
Parameters
Units
Min
Max
Conditions
DC VDD Voltage Supply
V
0
3.9
All VDD Pins
DC Control Pin Voltage
V
0
3.6
All Control Pins
Through VDD Pins when TX is “ON”
DC VDD Current
Consumption
mA
400
TX RF Input Power
dBm
+7
ANT RF Input Power
dBm
+20
Junction Temperature
o
C
Storage Ambient
Temperature
o
C
-40
+150
Operating Ambient
Temperature
o
C
-40
+85
Bypass Mode
150
Appropriate care required according to
JEDEC Standards
Moisture Sensitivity
ESD HBM
MSL1
V
+/-4250
All Pins
Note: Sustained operation at or above the Absolute Maximum Ratings for any one or combinations of the above
parameters may result in permanent damage to the device and is not recommended.
All Maximum RF Input Power Ratings assume 50-Ohm terminal impedance.
NOMINAL OPERATING CONDITIONS:
Parameters
Units
Min
Typ
Max
Conditions
DC VDD Voltage Supply (Note 1)
V
3.0
3.3
3.6
All VDD Pins
Control Voltage “High” (Note 2)
V
1.2
3.3
Control Voltage “Low”
V
0
0.3
DC Control Pin Current
Consumption
μA
1
DC Shutdown Current
μA
3
PA Turn On/Off Time
μsec
0.5
ja (Note 3)
o
C/W
42
jc (Note 4)
o
C/W
10
LNA Turn On/Off Time
μsec
0.5
1
Shut-Down and “ON” State
Switching Time
μsec
0.5
1
1
Note 1: For normal operation of the RFX8051, VDD must be continuously applied to all VDD supply pins.
Note 2: If control voltage can exceed 1.8V, a 1KΩ – 10KΩ series resistor is recommended for the application circuit
on each control line.
Note 3: For operation above +85 ⁰C, use the Θja as guidance for system design to assure the junction temperature
will not exceed the maximum of +150 ⁰C.
Note 4: Case is defined as the bottom of the EVB under the thermal vias.
3
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
RFX8051
Production Data Sheet
TRANSMIT PATH CHARACTERISTICS (VDD=3.3V; T=+25oC)
Parameters
Units
Min
Typ
Max
Conditions
Operating Frequency Band
GHz
5.15
Linear Output Power for 802.11ac
dBm
+16
EVM<1.8%,
MCS9 256QAM 80MHz
Linear Output Power for 802.11n
dBm
+17
EVM<3%,
MCS7 64QAM 40MHz
Linear Output Power for 802.11a
dBm
+17.5
EVM<3%,
64QAM 54Mbps
Linear Output Power for 802.11a
6Mps
dBm
+19
For MCS0/6Mbps Mask Compliace
28
Between TX and ANT pins
5.85
Small-Signal Power Gain
(Pin = -20dBm)
dB
Power Gain Flatness
dB
±0.5
Between TX and ANT pins
Output P1dB
dBm
+23
Between TX and ANT pins
TX Quiescent Current
mA
140
No RF Signal Applied
TX Linear Current
mA
200
POUT = +17dBm, 20 MHz
V
0.15 - 1
POUT = +5 to +20dBm, 10kΩ Load
Second Harmonic
dBc
-40
POUT=+20dBm, CW
Third Harmonic
dBc
-40
POUT=+20dBm, CW
Input Return Loss
dB
-14
At TX Port
Output Return Loss
dB
-14
At ANT Port
Load VSWR for Stability (CW, Fixed
Pin for Pout=+20dBm with 50Ω load)
N/A
4:1
6:1
All non-harmonically related spurs
less than -43dBm/MHz
Load VSWR for Ruggedness (CW,
Fixed Pin for Pout=+20dBm with 50
Ohm Load)
N/A
8:1
10:1
No Damage
Power Detector Voltage Output
27
4
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
RFX8051
Production Data Sheet
RECEIVE PATH CHARACTERISTICS (VDD=3.3V; T=+25oC)
Parameters
Operating Frequency Band
Units
Min
GHz
5.15
Typ
Max
Conditions
5.85
All RF Pins are Loaded by 50-Ohm
Gain
dB
11
Between ANT and RX pins, Low NF
Mode; RXEN=LEN=”High”
Noise Figure
dB
3
At ANT Pin, Low NF Mode
Insertion Loss for LNA Bypass Mode
dB
6
Between ANT and RX Pins;
RXEN=”High”, LEN=”Low”
-12
At ANT Port, Low NF Mode
Input Return Loss
dB
-12
LNA Bypass Mode
-12
At RX Port, Low NF Mode
-12
LNA Bypass Mode
Output Return Loss
dB
RF Port Impedance
Ohm
DC Quiescent Current
50
15
No RF Applied, Through VDD, Low NF
Mode
1.2
No RF Applied, Through VDD, LNA
Bypass Mode
-5
At ANT Pin, Low NF Mode
+13
At ANT Pin, LNA Bypass Mode
mA
Input P1dB
dBm
CONTROL LOGIC TRUTH TABLE
TXEN
LEN
RXEN
Mode Of Operation
0
0
0
Shutdown Mode
1
X
X
Transmit Mode
0
1
1
Low NF Receive Mode
0
0
1
LNA Bypass Receive Mode
All Others
Note:
Unsupported (No Damage)
“1” denotes high voltage state (> 1.2V)
“0” denotes low voltage state (<0.3V) at Control Pins
“X” denotes the don’t care state
1KΩ – 10KΩ series resistor may be required for each control line
5
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
RFX8051
Production Data Sheet
PACKAGE DIMENSIONS (All Dimensions in mm):
A
A1
Dimensions( mm)
Min
Nom
A
0.5
0.55
A1
0.00
b
0.20
0.25
D
2.95
3.00
D2
1.65
1.70
E
2.95
3.00
E2
1.65
1.70
e
0.45
0.50
L
0.35
0.40
b
e
D2 D
Max
0.6
0.05
0.30
3.05
1.75
3.05
1.75
0.55
0.45
Pin 1 Mark
E
E2
L
PCB LAND PATTERN
0.25mm
Pin 1
PACKAGE MARKING:
0.5mm
0.25mm
Pin 1 Mark
0.65mm
1.7 mm x
1.7mm
3.5mm
8051
LLLL.L
First Line:
Part Number
UBYYWW
Third Line:
Date Code
Second Line:
Wafer Lot
3.0mm
6
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com